Wax heater



FIG. 1 is a top, front and left side perspective view of a wax heater showing my new design;

FIG. 2 is an exploded top, front and left side perspective view thereof;

FIG. 3 is an exploded rear and bottom perspective view thereof;

FIG. 4 is front elevational view thereof;

FIG. 5 is a rear elevational view thereof;

FIG. 6 is a right side view thereof;

FIG. 7 is a left side view thereof;

FIG. 8 is a top plan view thereof; and,

FIG. 9 is a bottom plan view.

The broken lines in the drawings illustrate portions of the wax heater which form no part of the claimed design. 

CLAIM The ornamental design for a wax heater, as shown and described. 